Sildenafil is the active ingredient used in the treatment of erectile dysfunction. The main difference between different forms of products containing sildenafil, such as tablets, oral gel, and effervescent tablets, mainly relates to the absorption rate and method of administration.

Tablets are taken orally with water, and absorption occurs through the digestive system. The absorption rate can vary depending on individual factors such as the presence of food in the stomach. Tablets typically last longer in the body but may take longer to start working.

Oral jelly is applied directly in the mouth by squeezing the contents of a half sachet. The gel is then absorbed through the oral mucosa, allowing for faster absorption into the bloodstream.

Effervescent tablets dissolve in water before consumption. This allows for quicker absorption of the medication as part of the active ingredient is already absorbed through the oral mucosa while the tablet dissolves. This can lead to a faster onset of action compared to regular tablets.